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I. Pre-operation Safety Preparation
1. Personal Protective Equipment (PPE) Requirements
Operators must wear full sets of PPE, including impact-resistant safety goggles, cut-resistant gloves, non-slip safety shoes, long-sleeved work clothes, and noise-canceling earplugs (or earmuffs). Working in slippers, short sleeves, or shorts is strictly prohibited. Scarves, jewelry, and other accessories that could get entangled in equipment must not be worn.
2. Equipment Inspection Standards
– Machine Body Fixation Check: For mobile models, ensure the parking brake is fully engaged and the support legs are firmly stabilized. For fixed models, check that anchor bolts are free from loosening.
– Power System Inspection: For electric models, verify that wiring is standardized, grounding is reliable, and there is no electrical leakage. For fuel-powered models, check that oil and fuel levels are sufficient, fuel lines are leak-free, and battery connections are tight.
– Core Component Inspection: Ensure blades are crack-free with uniform wear and their fastening bolts are tight. Check that the feed inlet guardrails and anti-kickback devices are intact. Confirm the screen is properly installed without deformation or damage. Ensure drive belts (or chains) are properly tensioned and all protective covers are in place.
– Safety Device Testing**: Verify that the emergency stop button is responsive and functional. Conduct a no-load test run for 1–2 minutes to check for abnormal noises, excessive vibration, or material ejection from the discharge port.
3. Worksite Clearing
The work area must be flat and firm, away from flammable/explosive materials, high-voltage power lines, and crowded places. Install safety warning signs and mark a restricted safety zone of at least 3 meters, prohibiting entry by unauthorized personnel. Remove hard objects such as stones, nails, and iron wires from the site to prevent equipment damage or safety hazards caused by their mixing with processing materials.
II. In-operation Safety Procedures
1. Feeding Operation Standards
Never push materials into the feed inlet by hand; always use the dedicated feeding rod. Maintain a minimum distance of 30cm between hands and the feed inlet.
Follow the principle of **uniform, moderate, and continuous feeding**. The diameter of materials fed at one time must not exceed the equipment’s rated limit. Forcing oversized or overhard materials into the inlet is strictly prohibited. If the feed inlet gets clogged, never insert hands or tools to clear the blockage.
Prioritize crushing dry branches. For wet branches, reduce the single feeding volume to avoid adhesion and clogging. Branches are recommended to be cut into sections no longer than 50cm to prevent entanglement with equipment.
2. Equipment Operation Monitoring
Operators must remain at their posts throughout the operation, continuously monitoring the equipment’s running status, and must not leave without authorization or engage in unrelated activities.
If abnormal conditions occur—such as unusual noises, excessive vibration, smoke emission, or material jamming—immediately press the emergency stop button, cut off the power supply (or shut down the engine), and only inspect and troubleshoot after the equipment has come to a complete stop.
Never remove protective covers, inspect blades, or adjust components while the equipment is in operation. Do not step over running equipment.
3. Team Operation Requirements
If two or more personnel are working together, clear division of labor is required: one person shall be solely responsible for equipment operation, and the other for material sorting and transfer. Materials must be transferred using dedicated tools; throwing materials directly into the feed inlet is prohibited. All team members must maintain clear communication signals to prevent misoperation.
III. Post-operation Safety Shutdown Procedures
1. Shutdown Process
First, stop feeding materials and let the equipment run idly for 1–2 minutes to empty all residual materials inside the machine.
Cut off the power source: For electric models, switch off the main power supply. For fuel-powered models, shut down the engine and wait for the machine body to cool down before performing subsequent operations.
For mobile models, re-engage the parking brake, retract the support legs, and clean material debris adhering to the exterior of the machine body.
2. Equipment Cleaning and Maintenance
Before cleaning, always confirm that the power supply/fuel has been completely cut off and the equipment is stationary and cooled down.
Clear residual materials from the feed inlet, discharge port, and screen. Inspect blade wear and sharpen or replace them promptly. Lubricate bearings, gears, and other lubrication points.
Check for loose bolts in all parts of the equipment and the integrity of protective covers. Repair or replace damaged components immediately.
3. Material and Worksite Handling
Promptly remove and sort the crushed materials for proper storage. Clear debris from the worksite, retrieve tools, and remove safety warning signs to ensure the area is free from potential hazards.
IV. Emergency Response and General Notes
1. Emergency Handling Procedures
– Material Jamming: Immediately stop the equipment and cut off power. Use a long-handled tool to carefully clear the blockage from the side. Never reverse the equipment to force material discharge.
– Personal Injury Incidents**: Immediately shut down the equipment and cut off power. Administer first aid to the injured person promptly, protect the accident scene, and report the incident to the relevant supervisor immediately.
2. Daily Management Notes
– Only designated and trained personnel are allowed to operate the equipment; unauthorized operation by unqualified personnel is strictly prohibited. Regular safety training and equipment operation drills must be organized for operators.
– For long-term storage, keep the equipment in a dry, well-ventilated area. Drain the fuel (for fuel-powered models), apply anti-rust oil to metal parts, and cover the equipment with a dustproof cover.
– Strictly comply with national environmental protection regulations. If the operation generates excessive dust, equip the equipment with dust collection devices to prevent environmental pollution.
